It costs $100,000 to do a Feasibility Study.
It costs another $600,000 to do the Project.
It costs another $300,000 to study why the Project Fail.
It costs $200,000 to come up with a new Project Plan.
It will costs another $1,000,000 to save the Project.
If Feasibility Study = X and Project Implementation = Y
Project Costs = (X + Y) multiply by 3.14159265359
In other words,
it is initial budgeted amount x PI